127 lines
4.9 KiB
C
127 lines
4.9 KiB
C
/****************************************************************************
|
|
* graphics/nxtk/nxtk_getwindow.c
|
|
*
|
|
* Copyright (C) 2011 Gregory Nutt. All rights reserved.
|
|
* Author: Gregory Nutt <gnutt@nuttx.org>
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
* 3. Neither the name NuttX nor the names of its contributors may be
|
|
* used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#include <stdlib.h>
|
|
#include <errno.h>
|
|
#include <debug.h>
|
|
|
|
#include <nuttx/nx/nx.h>
|
|
#include <nuttx/nx/nxtk.h>
|
|
|
|
#include "nxfe.h"
|
|
#include "nxtk_internal.h"
|
|
|
|
/****************************************************************************
|
|
* Pre-Processor Definitions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Types
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Data
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Public Data
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: nxtk_getwindow
|
|
*
|
|
* Description:
|
|
* Get the raw contents of graphic memory within a rectangular region. NOTE:
|
|
* Since raw graphic memory is returned, the returned memory content may be
|
|
* the memory of windows above this one and may not necessarily belong to
|
|
* this window unless you assure that this is the top window.
|
|
*
|
|
* Input Parameters:
|
|
* wnd - The window structure reference
|
|
* rect - The location to be copied
|
|
* plane - Specifies the color plane to get from.
|
|
* dest - The location to copy the memory region
|
|
* deststride - The width, in bytes, of the dest memory
|
|
*
|
|
* Return:
|
|
* OK on success; ERROR on failure with errno set appropriately
|
|
*
|
|
****************************************************************************/
|
|
|
|
int nxtk_getwindow(NXTKWINDOW hfwnd, FAR const struct nxgl_rect_s *rect,
|
|
unsigned int plane, FAR uint8_t *dest,
|
|
unsigned int deststride)
|
|
{
|
|
FAR struct nxtk_framedwindow_s *fwnd = (FAR struct nxtk_framedwindow_s *)hfwnd;
|
|
struct nxgl_rect_s getrect;
|
|
|
|
#ifdef CONFIG_DEBUG
|
|
if (!hfwnd || !rect || !dest)
|
|
{
|
|
gvdbg("Invalid parameters\n");
|
|
set_errno(EINVAL);
|
|
return ERROR;
|
|
}
|
|
#endif
|
|
|
|
/* Move the rectangle to that it is relative to the containing
|
|
* window. If part of the rectangle lies outside the window,
|
|
* it will contain garbage data, but the contained area will be
|
|
* valid.
|
|
*/
|
|
|
|
nxgl_rectoffset(&getrect, rect,
|
|
fwnd->fwrect.pt1.x - fwnd->wnd.bounds.pt1.x,
|
|
fwnd->fwrect.pt1.y - fwnd->wnd.bounds.pt1.y);
|
|
|
|
/* Then get it */
|
|
|
|
return nx_getrectangle((NXWINDOW)hfwnd, &getrect, plane, dest, deststride);
|
|
}
|